Stress corrosion cracking of copper in swollen bentonite simulating nuclear waste disposal environment

Fujimoto, Shinji; Tsuchiya, Hiroaki; Ogawa, Soma; Iida, Yoshihisa; Taniguchi, Naoki

doi:https://doi.org/10.1002/maco.202011878

Stress corrosion cracking of copper in swollen bentonite simulating nuclear waste disposal environment

Fujimoto, Shinji; Tsuchiya, Hiroaki; Ogawa, Soma et al.

Materials and Corrosion, 2021, 72(1-2), 333-338

アクセス数:702件（2025-07-27 07:44 集計）

固定URL: https://hdl.handle.net/11094/82366

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タイトル	Stress corrosion cracking of copper in swollen bentonite simulating nuclear waste disposal environment
著者	NRID 1000070199371 1000070199371 ORCID 0000-0002-7787-4190 0000-0002-7787-4190 researchmap permalink read0013980 read0013980 Scopus Author ID 57211614674 57211614674 著者名 Fujimoto, Shinji
	NRID 1000050432513 1000050432513 ORCID 0000-0001-5619-0139 0000-0001-5619-0139 researchmap permalink read0076368 read0076368 Scopus Author ID 7202203364 7202203364 著者名 Tsuchiya, Hiroaki
	著者名 Ogawa, Soma
	著者名 Iida, Yoshihisa
	著者名 Taniguchi, Naoki
キーワード等	NH3
	SCC
	spent nuclear fuel waste
	tarnish rupture
抄録	Stress corrosion cracking (SCC) of pure copper in bentonite clay was examined using a slow strain rate test (SSRT). Bentonite was swollen with pure water or aqueous solutions containing NH₃ of 5 and 10 mM. Thick corrosion films and particulate deposits were formed on the copper surface after the SSRT. Typical tarnish rupture-type SCC occurred on pure copper in swollen bentonite with and without NH₃. The crack propagation rate was enhanced by NH₃. It is confirmed that a thick oxide layer was formed on copper during plastic deformation, resulting in tarnish crack-type SCC. Many particulate deposits observed on the surface were formed due to the rapid dissolution of Cu²⁺ ions to form porous CuO at local deformed sites, regardless of the SCC occurrence.
出版者	Wiley-VCH Verlag
収録物名	Materials and Corrosion
巻(号)	72(1-2)
ページ	333-338
刊行年月	2021-01
言語	英語
ハンドルURL	https://hdl.handle.net/11094/82366
PISSN	09475117
eISSN	15214176
NCID	AA00887408
関連情報 (isVersionOf)	DOI (出版社版) https://doi.org/10.1002/maco.202011878
アクセス権	open access
権利情報	This is the peer reviewed version of the following article: Fujimoto, S, Tsuchiya, H, Ogawa, S, Iida, Y, Taniguchi, N. Stress corrosion cracking of copper in swollen bentonite simulating nuclear waste disposal environment. Materials and Corrosion. 2021; 72: 333– 338., which has been published in final form at https://doi.org/10.1002/maco.202011878. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
出版タイプ	Accepted Manuscript
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Materials and Corrosion. 2021, 72(1-2), p. 333-338
DC.title	Stress corrosion cracking of copper in swollen bentonite simulating nuclear waste disposal environment
DC.creator	Fujimoto, Shinji
	Tsuchiya, Hiroaki
	Ogawa, Soma
	Iida, Yoshihisa
	Taniguchi, Naoki
DC.publisher	Wiley-VCH Verlag
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2021-01
DC.identifier	https://doi.org/10.1002/maco.202011878
DC.subject	NH3
	SCC
	spent nuclear fuel waste
	tarnish rupture
DCTERMS.abstract	Stress corrosion cracking (SCC) of pure copper in bentonite clay was examined using a slow strain rate test (SSRT). Bentonite was swollen with pure water or aqueous solutions containing NH₃ of 5 and 10 mM. Thick corrosion films and particulate deposits were formed on the copper surface after the SSRT. Typical tarnish rupture-type SCC occurred on pure copper in swollen bentonite with and without NH₃. The crack propagation rate was enhanced by NH₃. It is confirmed that a thick oxide layer was formed on copper during plastic deformation, resulting in tarnish crack-type SCC. Many particulate deposits observed on the surface were formed due to the rapid dissolution of Cu²⁺ ions to form porous CuO at local deformed sites, regardless of the SCC occurrence.
DC.rights	This is the peer reviewed version of the following article: Fujimoto, S, Tsuchiya, H, Ogawa, S, Iida, Y, Taniguchi, N. Stress corrosion cracking of copper in swollen bentonite simulating nuclear waste disposal environment. Materials and Corrosion. 2021; 72: 333– 338., which has been published in final form at https://doi.org/10.1002/maco.202011878. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
DC.format	82366
citation_title	Stress corrosion cracking of copper in swollen bentonite simulating nuclear waste disposal environment
citation_author	Fujimoto, Shinji
	Tsuchiya, Hiroaki
	Ogawa, Soma
	Iida, Yoshihisa
	Taniguchi, Naoki
citation_publisher	Wiley-VCH Verlag
citation_language	英語
citation_date	2021-01
citation_journal_title	Materials and Corrosion
citation_volume	72
citation_issue	1-2
citation_firstpage	333
citation_lastpage	338
citation_doi	https://doi.org/10.1002/maco.202011878
citation_public_url	https://hdl.handle.net/11094/82366

Stress corrosion cracking of copper in swollen bentonite simulating nuclear waste disposal environment

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